A tugboat is pushing a barge in to a harbor. The barge is exerting a force of 3000 N against the tugboat. which force would most likely allow the tugboat to move the barge into the harbor

One isotope of a metallic element has the mass number 65 and 35 neutrons in the nucleus. the cation derived from the isotope has 28 electrons. a. what is the symbol for the element? b. what is the charge?

When a force is exerted on an object, does a large force always produce a larger change in the object's momentum than a small force does?

A 70.0 kg ice hockey goalie, originally at rest, has a 0.170 kg hockey puck slapped at him at a velocity of 33.5 m / s. Suppose the goalie and the puck have an elastic collision, and the puck is reflected back in the direction from which it came.

Which of the following do you calculate when you divide the total distance trav- eled by the total travel time?

You are driving at 90 km/h. How many meters are you covering per second?

How does air resistance affect the acceleration of falling objects?

A ride-sharing car moving along a straight section of road starts from rest, accelerating at 2.00 m/s2 until it reaches a speed of 28.0 m/s. Then the vehicle moves for 41.

In vacuum, red light travels at a greater speed than blue light does. a. true b. false?

If a steam engine produces work, how does the internal energy of the machine change?

When energy is converted from one form to another in a chemical or physical change, which of the following also changes by a measureable amount? Select the correct answer below: a. The total mass in the system b. The force of gravity c.